Dell XPS 730 (Late 2008) - Manual (Page 48)

46 Replacing Drives
NOTE: If a hard drive bracket is installed inside the hard drive bay, remove
the bracket before you install a new hard drive.
5 Prepare the new hard drive for installation and check the documentation
for the hard drive to verify that the drive is configured for your computer.
NOTE: If the hard drive you are installing does not have the hard drive bracket
attached, use your original hard drive bracket; snap the bracket onto the new
drive.
1 blue tabs (2) 2 hard drive
3 hard drive bay
1
3
2